Cooper & Hunter MES 18,000 BTU Outdoor Condenser, 230V, R410A - Mini Split Air Conditioner Heat Pump

Cooper & Hunter7-Yr Warranty

CH-18MES-230VO
Product specifications
Brand Cooper & Hunter
Voltage 230V
SEER 22.9
WiFi Not Included
Type Outdoor Unit
Freon R410A
Compressor Inverter
$1,092.52
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Wait! This is an Individual Component To build a working system, this unit must match your other equipment in two ways:

  • Same Brand Only: Only pair with other same Brand and Series.
  • Same Refrigerant: Both units must use the exact same gas type (R454B, R32, or R410A).

Mixing different brands or refrigerant types will cause the system to fail and void your warranty.

Pickup available at 3550 Northwest 113th Court

Usually ready in 2-4 days

Questions about this system?

Answers in seconds — tap a question below

  • Sized for about 500–800 sq ft. Rule of thumb: ~20 BTU per sq ft, and 12,000 BTU = 1 ton (this unit is 18,000 BTU (1.5-ton)). Ceiling height, insulation, sun and climate shift that — if you're between sizes, size up for hot/humid rooms. Not sure? We'll confirm the right BTU for your space.
  • 12,000 BTU = 1 ton — "tons" is just the older way of stating capacity. So 24,000 BTU = 2 tons, 36,000 = 3 tons, and so on. This system is 18,000 BTU (1.5-ton). BTU tells you the capacity; SEER2 tells you the efficiency.
  • It uses R410A — a proven, widely serviced refrigerant. The outdoor unit ships pre-charged for a standard line set, so most installs need no extra refrigerant; your licensed, EPA-608-certified installer verifies the charge and tops it off if your line set is longer.
  • Rated SEER2 22.9 — a strong efficiency number, and the higher it is the lower your energy bills. Its inverter compressor ramps up and down instead of cycling on/off, so it holds the temperature steadily, runs quietly, and uses less power than a standard AC or window unit.
  • Needs a dedicated 230V circuit, like a large household appliance, so it can deliver full capacity to larger rooms and multi-zone setups. Your licensed HVAC installer or electrician sets up the correct breaker and disconnect to meet local electrical code.
  • Yes — a big upgrade. It's far more efficient (inverter, SEER2 22.9) and much quieter, since the compressor sits outside instead of in your window or on the floor. It mounts permanently, doesn't block a window, and heats as well as cools year-round. Higher upfront cost, but lower bills and a longer lifespan.
  • Yes to all three. It's an inverter heat pump — cools in summer, heats in winter (even in the cold), far more efficiently than electric heaters. A Dry mode also pulls out humidity, so rooms feel cooler and less muggy.
  • Yes — WiFi is not included, so you can set schedules, change the temperature, and even turn it on before you get home, all from the mobile app (and pair it with voice assistants). A standard remote is included too.
  • Ships as a complete set: CH-HPR19M-230VO. Everything arrives together — check the photos and specs for the full kit.
  • It should be installed by a licensed, EPA-608-certified HVAC professional — we don't recommend DIY installation. Handling refrigerant requires EPA Section 608 certification under U.S. law, and professional installation keeps the system safe, code-compliant, and your manufacturer warranty valid.
  • Yes — you get full inverter heat-pump technology and the same core features as premium brands without paying for the name, which is how we keep prices low. Shipping is free on U.S. orders over $300, and our team can help with sizing and support.
Hurry to buy! Get your mini-split system with R-410A refrigerant (offer valid until November 27)
Important info
  • R-410A is being phased down in favor of newer refrigerants; inventory is limited.
  • Existing R-410A systems remain serviceable; parts and qualified service are widely available.
  • Check local codes and rebates. Some incentives prioritize high-efficiency heat pumps (R-32/R-454B).
  • We stock both R-410A and next-gen options—choose what fits your timeline and budget.
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Why buy this mini split from MiniSplitsForLess

  • Free Shipping over $300Ships free to the lower 48 states — flat rate, no surprises at checkout.
  • USA-Based Expert SupportReal U.S. HVAC pros help with BTU sizing, refrigerant and install questions.
  • Genuine Units & Full WarrantyBrand-new, authorized-dealer equipment backed by the full manufacturer warranty.
  • Fast Nationwide ShippingIn stock and ready to ship from U.S. warehouses across all 48 states.

What Stands Out

Sleek Wall-Mount Design

A slim, quiet indoor head mounts high on the wall and delivers 18000 BTU of heating & cooling — modern looks with whisper-quiet operation.

Inverter Efficiency — SEER2 22.9

A variable-speed inverter compressor ramps to match the load instead of cycling on/off, holding SEER2 22.9 on 230V — steady comfort with noticeably lower energy bills.

Right-Sized Coverage

Engineered to heat & cool up to 500–800 sq ft — matched capacity so you never over- or under-size the space.

Olivia Wall Mount

The Cooper&Hunter Olivia Unit blends contemporary design with high-performance heating and cooling. Its sleek, modern appearance complements any space while providing efficient climate control for year-round comfort.

Featuring quiet operation, energy-saving technology, and advanced air filtration, it enhances indoor air quality. The unit is ideal for residential and light commercial applications, offering easy installation, minimal maintenance, and reliable performance.

Whether you're looking to cool or heat your space, the Olivia Midnight delivers optimal comfort with style and efficiency, making it a perfect choice for those seeking both function and elegance in their climate control solutions.

White air conditioner with purple shield logo and ’olivia’ text.

Warranty and Tech Support Info

By selecting Cooper&Hunter products for your home or business, you’ll receive expert technical support from heating and cooling specialists, including product manuals, troubleshooting guides, and warranty information.

Warranty terms: The manufacturer provides a Limited Warranty of 7 years for the compressor and 5 years for parts.

Warranty terms
White air conditioning unit with black fan and copper tubing design.

Energy Efficiency

Cooper&Hunter’s Inverter Technology maximizes efficiency and reduces energy costs by adjusting the compressor speed to your specific needs. Experience unparalleled comfort, quieter operation, and longer equipment lifespan. Choose Cooper&Hunter for cutting-edge HVAC solutions that deliver optimal performance and reliability.

White leather sectional sofa with modern design and clean lines.

Main Features

Cooper&Hunter's Olivia Units feature sleek, modern design with efficient heating and cooling capabilities. They offer quiet operation, energy-saving technology, and advanced air filtration for improved indoor air quality. Ideal for residential and light commercial use, these units provide easy installation, minimal maintenance, and reliable year-round comfort.

Technical Specifications

INDOOR MODELS HYPER

Indoor Model CH-06MOLVWM-230WI CH-09MOLVWM-230WI CH-12MOLVWM-230WI CH-18MOLVWM-230WI CH-24MOLVWM-230WI
Power Supply Rated (V, Ph, Hz) 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60
Rated Capacity (Btu/h) 6,000 9,000 12,000 18,000 24,000
Minimum Circuit Ampacity (MCA) (A) 3 3 3 3 3
Max. Fuse (A) 15 15 15 15 15
Indoor Air Flow (Turbo/Hi/Mi/Lo) (CFM) 294/247/176/141 341/291/194/152 341/291/194/152 768/530/458/382 790/601/459/382
Indoor Noise Level (Hi/Mi/Lo) dB(A) 38.5/30/20.5 40/35/23.5 41.5/36/24 46/40/25 46.5/44/35
Dimension (WxDxH) (inch) 28.70x7.87x11.30 31.57x7.87x11.61 31.57x7.87x11.61 42.64x9.61x13.23 42.68x9.21x13.27
Packing (WxDxH) (inch) 31.10x10.83x14.76 34.45x11.22x14.96 34.45x11.22x14.96 45.47x16.34x12.40 45.47x16.34x12.40
Net/Gross Weight (lbs.) 17.64/22.49 18.96/24.25 18.74/24.25 29.54/37.48 29.98/38.14
Room Temperature Cooling (°F) 60 - 90 60 - 90 60 - 90 60 - 90 60 - 90
Room Temperature Heating (°F) 32 - 86 32 - 86 32 - 86 32 - 86 32 - 86
Liquid Side/Gas Side (inch) 1/4" / 3/8" 1/4" / 3/8" 1/4" / 1/2" 1/4" / 1/2" 3/8" / 5/8"

INDOOR MODELS REGULAR

Indoor Model CH-060LVWM-115VI CH-090LVWM-115WI CH-120LVWM-115WI CH-09MOLVWM-230VI CH-12MOLVWM-230WI CH-18MOLVWM-230WI CH-24MOLVWM-230WI
Power Supply Rated (V, Ph, Hz) 115V, 1, 60 115, 1, 60 115, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60
Rated Capacity (Btu/h) 7,000 9,000 12,000 9,000 12,000 18,000 24,000
Minimum Circuit Ampacity (MCA) (A) 3 3 3 3 3 3 3
Max. Fuse (A) 15 15 15 15 15 15 15
Indoor Air Flow (Turbo/Hi/Mi/Lo) (CFM) 341/300/241/176 341/300/241/176 341/300/241/176 291.18/194.12/152.94 341/291/194/152 768/530/458/382 790/601/459/382
Indoor Noise Level (Hi/Mi/Lo) dB(A) 41.5/36/24 41.5/36/24 41.5/36/24 40/34/23.5 42/36/25 45.5/41/24.5 48/40/28
Dimension (WxDxH) (inch) 31.57x7.87x11.61 31.57x7.87x11.61 31.57x7.87x11.61 31.57x7.87x11.61 31.57x7.87x11.61 42.64x9.61x13.23 42.68x9.21x13.27
Packing (WxDxH) (inch) 34.45x11.22x14.96 34.45x11.22x14.96 34.45x11.22x14.96 34.45x11.22x14.96 34.45x11.22x14.96 45.47x16.34x12.40 45.47x16.34x12.40
Net/Gross Weight (lbs.) 18.96/24.47 18.96/24.47 18.96/24.47 18.96/24.25 18.74/24.25 29.54/37.48 29.98/38.14
Room Temperature Cooling (°F) 60 - 90 60 - 90 60 - 90 60 - 90 60 - 90 60 - 90 60 - 90
Room Temperature Heating (°F) 32 - 86 32 - 86 32 - 86 32 - 86 32 - 86 32 - 86 32 - 86
Liquid Side/Gas Side (inch) 1/4" / 1/2" 1/4" / 1/2" 1/4" / 1/2" 1/4" / 3/8" 1/4" / 1/2" 1/4" / 1/2" 3/8" / 5/8"

OUTDOOR MODELS REGULAR

Parameter ES-Series
CH-18MES-230V0 CH-28MES-230V0 CH-36MES-230V0 CH-48MES-230V0 CH-55MES-230V0
Power Supply (V, Ph, Hz) 208/230, 1, 60
Voltage Range (V) 187-253 187-253 187-253 187-253 187-253
Cooling Rated Capacity (Btu/h) 18,000(5,650~22,000) 28,000(9,838~30,438) 36,000(8,209~40,555) 48,000(19,000~50,000) 55,000(11,600-57,300)
Cooling Rated Current (A) 6.2 11 13.6 16.8 23.5
EER2 (Btu/h) 13.9 12.7 11.7 12.5 10.5
SEER2 (Btu/h) 22.9 24.6 23.9 23.4 21.3
Heating Rated Capacity (Btu/h) 19,000(5,050~24,400) 28,000(8,218-31,000) 37,000(8,008~44,632) 48,000(12,500~52,000) 55,000(12,500~63,000)
Heating Rated Current (A) 6.3 10.5 13 17.1 22.5
Heating at 47°F COP (W/W) 3.74 3.73 3.5 3.57 3.2
HSPF4 10.5 9.3 9.3 8.7 9.1
HSPF5 8 7.1 7.1 6.8 6.8
Heating at 5°F Rated Capacity (Btu/h) 12,600 19,000 25,200 33,000 32,200
Heating at 5°F COP (W/W) 2 2 1.8 1.8 1.8
Minimum Circuit Ampacity (Outdoor unit) (A) 18 24.5 25 40 40
Max. Fuse (Outdoor unit) (A) 25 30 40 60 60
Outdoor Air Flow (Max) (CFM) 1,765 2,129 2,147 4,500 4,500
Outdoor Noise Level (Sound Pressure) (dB(A)) 58 61 63 64 62
Dimension (WxDxH) (inch) 35.04x13.46x26.50 37.24x16.14x31.89 37.24x16.14x31.89 37.48x16.34x52.48 37.48x16.34x52.48
Packing (WxDxH) (inch) 40.55x17.24x29.53 42.91x19.69x34.84 42.91x19.69x34.84 43.11x19.49x58.27 43.11x19.49x58.27
Net/Gross Weight 100/109 140/151 169/181 226/257 224/257
Refrigerant Type/Charged (oz) R410A/65.26 R410A/91.7 R410A/134.04 R410A/162 R410A/162
Refrigerant Precharge (ft) 49 74 98 123 123
Additional Charge for Each (oz/ft) 0.16 0.16 0.16 - *0.32 0.16 - *0.32 0.16 - *0.32
Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340
Refrigerant Piping Liquid Side (inch) 2 x 1/4" 3 x 1/4" 4 x 1/4" 5 x 1/4" 5 x 1/4"
Refrigerant Piping Gas Side (inch) 2 x 3/8" 3 x 3/8" 3 x 3/8" + 1 x 1/2" 3 x 3/8" + 2 x 1/2" 3 x 3/8" + 2 x 1/2"
Max. Pipe Length (ft) 131 197 262 262 262
Max. Length for One Indoor Unit (ft) 82 98 115 115 115
Max. Height Difference in Level (ft) 49 49 49 49 49
Max. Height Difference Between Indoor Units (ft) 33 33 33 33 33
Ambient Temperature Cooling (°F) 5~122 5~122 5-122 5-122 5~122
Ambient Temperature Heating (°F) -13~75 -13-75 -13~75 -13~75 -13~75
AHRI
Energy Star
NEEP

OUTDOOR MODELS HYPER

Parameter CH-HPR19M-230V0 CH-HPR28M-230V0 CH-HPR36M-230V0 CH-HPR48M-230VO CH-HPR55M-230V0
Power Supply (V, Ph, Hz) 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60 208/230, 1, 60
Voltage Range (V) 187-253 187-253 187-253 187-253 187-253
Cooling Rated Capacity (Btu/h) 19,000 (5,500~-25,000) 28,000(7,995-32,826) 36,000(17,900~42,000) 48,000 (19,300-51,000) 55,000(11,600~58,000)
Cooling Rated Current (A) 9.1 12.4 11.8 18 23.5
EER2 (Btu/h) 12.5 12.5 13.6 11.7 10.5
SEER2 (Btu/h) 22 23 22.2 21.8 22
Heating Rated Capacity (Btu/h) 20,000(8,100~29,700) 28,000(5,035~38,712) 36,500(12,500~49,000) 49,000(11,500~58,000) 55,000(33,000~63,000)
Heating Rated Current (A) 9.4 10.5 12.2 17.8 22.5
Heating at 47°F COP (W/W) 3.4 3.66 3.9 3.8 3.05
HSPF4 9.8 10.6 10.3 9.8 9.3
HSPF5 7.7 8.1 8.3 7.6 7.3
Heating at 5°F Rated Capacity (Btu/h) 19,000 24,000 36,000 48,000 37,800
Heating at 5°F COP (W/W) 1.96 1.75 1.9 2 1.8
Minimum Circuit Ampacity (Outdoor unit) (A) 20 25 40 42 40
Max. Fuse (Outdoor unit) (A) 25 40 60 50 60
Outdoor Air Flow (Max) (CFM) 2,129 2,147 4,500 4,500 4,500
Outdoor Noise Level (Sound Pressure) (dB(A)) 61 63 63 65 62
Dimension (WxDxH) (inch) 37.24x16.14x31.89 37.24x16.14x31.89 37.48x16.34x52.48 37.48x16.34x52.48 37.48x16.34x52.48
Packing (WxDxH) (inch) 42.91x19.69x34.84 42.91x19.69x34.84 43.11x19.49x58.27 43.11x19.49x58.27 43.11x19.49x58.27
Net/Gross Weight 138/149 168/179 223/254 238/270 233/266
Refrigerant Type/Charged (oz) R410A/91.7 R410A/134.04 R410A/162 R410A/162 R410A/162
Refrigerant Precharge (ft) 49 74 98 123 123
Additional Charge for Each (oz/ft) 0.16 0.16 - *0.32 0.16 - *0.32 0.16 - *0.32 0.16 -*0.32
Design Pressure (PSIG) 550/340 550/340 550/340 550/340 550/340
Refrigerant Piping Liquid Side (inch) 2 x 1/4" 3 x 1/4" 4 x 1/4" 5 x 1/4" 5 x 1/4"
Refrigerant Piping Gas Side (inch) 2 x 3/8" 2 x 3/8" +1 x 1/2" 3 x 3/8" +1 x 1/2" 3 x 3/8" + 2 x 1/2" 3 x 3/8" +2 x 1/2"
Max. Pipe Length (ft) 131 197 262 262 262
Max. Length for One Indoor Unit (ft) 82 98 115 115 115
Max. Height Difference in Level (ft) 49 49 49 49 49.21
Max. Height Difference Between Indoor Units (ft) 33 33 33 33 33
Ambient Temperature Cooling (°F) 5~122 5~122 5~122 5~122 5~122
Ambient Temperature Heating (°F) -22~75 -22~75 -22~75 -22~75 -22~75

Multiple Control Methods

Cooper&Hunter’s Olivia Midnight Unit can be managed with a user-friendly remote control or the Cooper&Hunter optional phone application. Both options offer precise temperature adjustments and optimal climate control for ultimate convenience.

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Frequently Asked Questions

What size mini split do I need for my space?

For areas up to 850 sq ft, the Cooper & Hunter MES 18,000 BTU mini split is an ideal choice. It efficiently heats and cools spaces of this size with its high SEER of 22.9.

Can I install a mini split myself?

Yes, the Cooper & Hunter MES mini split can be installed by a DIY enthusiast, especially with available kits, but it's important to follow the installation guidelines closely. Keep in mind that proper installation will ensure optimal performance and efficiency.

Does the mini split come pre-charged with refrigerant?

The Cooper & Hunter MES unit is pre-charged with R410A refrigerant for up to 25 ft of line set, making installation simpler. Ensure you have the correct line set length to maintain efficiency.

What voltage does the Cooper & Hunter mini split require?

The Cooper & Hunter MES model operates on a 230V power supply, which is standard for many residential applications. Ensure your electrical system can support this voltage for optimal operation.

What warranty does the Cooper & Hunter MES offer?

The Cooper & Hunter MES comes with a 5-year parts warranty and a 7-year compressor warranty, provided you register the unit within 30 days of purchase. This ensures your investment is protected for years to come.

What SEER rating do I need for energy efficiency?

The Cooper & Hunter MES boasts an impressive SEER of 22.9, which exceeds the minimum efficiency standards. A higher SEER rating like this one can significantly reduce your energy bills while providing effective heating and cooling.